Each of these disc-shaped mechanical objects is about five meters in diameter, like upside-down discs.
The whole body is made of jet black metal, with a small round door on the top, and cameras and jet pipes around it. It moves almost silently, and from a distance it looks like some giant shellfish moving with the ocean currents.
But obviously they were not, but they were actively driving towards the wreckage area of the fishing boat...
A total of three dish-shaped submarines quickly approached the floating wreckage of the ship and began to search for survivors. Once found, the small round door on the top opened, and someone came out and dragged the almost frozen survivors into the submarine. .
Lu Ping read Chu Zixue's reconfiguration, pointed at the submarines and asked in his mind: "Is that the submarine from the Crystal Palace?"
"That's right, the b2 type disc submersible," Chu Zixue took a look and nodded directly, "a small submersible that can be piloted by a single person. It has good performance and can carry 13 people at full load... I had one before."
Lupine breathed a sigh of relief.
He was originally worried about how to save these survivors of the shipwreck... After all, although he could kill the undead, he had no ability to drag a group of oil bottles to nearby land on this vast sea!
What's more, he doesn't even know where the nearest land is!
The most likely rescue plan is to enlist the help of Crystal Palace. Lu Ping's original plan was to first see if these people had a survival crisis, and after making sure that their living conditions were stable, he would first go to the Crystal Palace quietly, and then find a way to call someone to come to the sea for rescue... But he didn't expect that some Crystal Palaces would suddenly appear. submersible.
"Have you already gone into the sea? Well, why are there so many wrecks? It couldn't be that your giant ship sank..." Chu Zixue was still looking at the surrounding environment, and Mi Mi Huhu exclaimed, "We can actually encounter patrols here. Team, then the Crystal Palace should be nearby!"
"Well...it's okay. I'll wake you up when we get to the Crystal Palace." Lu Ping said silently, and then read the recombination status of the cow and horse, putting Chu Zixue into sleep again.
"Thank you, thank you!" At this time, a disc-shaped submarine also arrived at the wreckage where Lupin and the others were. The old man holding the flare gun burst into tears with an extremely exaggerated expression, "Old man, I am lucky enough to be able to see the legendary Crystal Palace…”
"You're welcome." A strong man emerged from the submarine, touched his nose and said, "Let's go into the submarine first, because some people are frozen and some are seriously injured. They have to be sent back to the city to be rescued... …When everyone is out of danger, Crystal Palace can be responsible for sending you back to where you came from.”
"Okay, okay!" The old man danced and took the initiative to get into the submarine.
Lu Ping and Dr. Ge looked at each other.
The two of them followed closely and got in.
————
The b2 saucer submersible is slowly diving.
Lupine noticed that many people had uncomfortable expressions, opening and closing their mouths constantly, rubbing the roots of their ears... and he actually experienced it himself. There was a pressure on his eardrums, just like the tingling sensation in his ears when an airplane landed from a high altitude. !
"Don't worry, everyone. It is normal for the pressure to increase as you dive... Our descent speed is strictly calculated, leaving sufficient time for the human body to adapt.
"As you dive, gas molecules will gradually merge into your blood, keeping the pressure inside and outside the human body always balanced... This is the so-called 'saturation diving'! The limit of human saturation diving can reach two thousand meters, but we are still far away. …”
"The air you are breathing now is also specially made. As you dive, the ordinary air in the cabin will gradually be replaced by a mixture of hydrogen and oxygen! This gas is enough to eliminate most symptoms of deep-sea anesthesia."
The driver of the saucer-shaped submersible, the sturdy man in blue uniform, explained in a low voice, regardless of whether everyone understood or not, he kept speaking softly anyway.
But his eloquent talk and calm voice did make everyone feel at ease.
Lu Ping raised his eyebrows slightly. He had already done some homework on diving in order to find the Crystal Palace, so he understood.
When people dive, they cannot dive infinitely with a compressed air bottle... Ordinary air is composed of 21% oxygen and 79% nitrogen. However, these originally safe and harmless gases will become toxic in the deep sea!
Under the huge pressure of the deep sea, nitrogen can cause symptoms called "nitrogen drunkenness", which is similar to drunkenness. People will become confused, slow to react, and lose judgment... Therefore, when breathing ordinary air, the depth cannot exceed 40 meters!
Helium-oxygen and hydrogen-oxygen mixtures are special gases for deep-sea diving. Hydrogen-oxygen mixtures are safer, have less breathing resistance, and are more comfortable, but they are also more expensive!
The mini compressed gas cylinder Lu Ping bought for Ge Xu contained a large amount of hydrogen-oxygen mixture, and one cylinder alone cost 50,000 universal coins.
"What exactly is the Crystal Palace like?"
Lu Ping turned his head slightly and looked out through the plexiglass window, but he could only see the blue water...
In the previous life documentary, those colorful underwater creatures, swarms of fish, strange jellyfish, huge sharks, etc... are all missing at this time.
Under the sea, there seems to be endless blue.
As it dives, the blue color is gradually replaced by dark blue and black... At a certain moment, a little dark red light and a large number of bubbles suddenly appear outside the window.
"That's... an undersea volcano?" Lu Pingtong shrank.
There are many active volcanoes in the ocean, and flowing magma is not uncommon at the bottom of the sea. However, Lu Ping remembered Chu Zixue's words and stared closely at those dark red flashing places.
The saucer-shaped submersible had no intention of avoiding it at all, but dived towards the magma.
There were exclamations in the submersible, and everyone seemed to feel that the metal walls of the submersible were getting hot, and they became a little panicked.
Lupine's eyes remained unblinking.
The moment the disc submersible touches magma!
It actually went through the whole thing.
Immediately afterwards, the dark and ferocious sea bottom, the dark red magma, the large number of nitrate-containing bubbles and sedimentary sulfur disappeared... and a bright blue sea bottom appeared in front of you.
Everything just now was an illusion! Virtual projection technology, combined with artificial heat sources and bubble making machines, together formed the active submarine volcano they just saw.
The water temperature also dropped rapidly.
"We're here." The man in the blue uniform of the driver said with a smile, controlling the submersible to slowly approach the seabed.
Everyone stared down at the window with their eyes wide open.
This is a very magical feeling... as if they are guests in a hot air balloon, slowly descending from high altitude to a bustling city.
Buildings of different sizes and styles are fixed on the seabed by pillars and arranged neatly; underwater streets divide the city into many regular grids. You can see "Scientific Research Street", "Jellyfish Street" and "Heroes" on the crossroad signs. Names like "Road"...Many pedestrians "walked" on the road wearing wetsuits, while various submersibles shuttled in the seawater above the buildings.
Lupine noticed that almost all buildings are made of glass, but the difference between public places and private residences is that the latter will be covered with various colorful wallpapers to form private spaces, while larger ones will be covered with various colorful wallpapers. Public buildings are often transparent, and many people without diving suits can be seen inside, acting like normal people on land.
Because of the extensive use of glass, at a glance... the entire city is sparkling and crystal clear.
"Crystal Palace...a modern underwater city for mankind." Even though Lu Ping had already heard Chu Zixue describe it, he still took a breath, shock flashing in his eyes.
